Home / 1,955.12-2,697.84-1,116

Finding the Fourth Proportional to 1,955.12, 2,697.84 and 1,116

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Solution

The fourth proportional to 1,955.12, 2,697.84 and 1,116 is: 1,539.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.12 : 2,697.84 = 1,116 : x
  2. Step 2: Convert to fraction form
    1,955.12/2,697.84 = 1,116/x
  3. Step 3: Cross multiply
    1,955.12x = 2,697.84 × 1,116
  4. Step 4: Simplify right side
    1,955.12x = 3,010,789.44
  5. Step 5: Solve for x
    x = 3,010,789.44/1,955.12
  6. Step 6: Final answer
    x = 1,539.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.